[Briefly: this guy John Tougas was in Mrs. Herrera's Algebra II class circa fall '89 ('90?) and he was having some trouble with the concept of imaginary numbers. These invisible digits are represented with the letter "i", which, as you can imagine, creates the potential for confusion with the pronoun "I". And but so Tougas and Herrera were going back and forth, cognition still murky, and then this usage confusion surfaced. Tougas realized this. And Tougas was known to laugh. Loudly. And he did. The room shook. I was looking around for a Richter scale. I had never heard laughter that loud before or since (ok, maybe Kumar Pallana in Rushmore, but it's damn close).]